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A haircutting appliance comprises an enclosed housing having a hollow handle connecting the housing to a vacuum source to carry away cut hairs from a subject's head.
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| Number | Title | Issue Date |
| 5398542 | Method for determining direction of travel of a wave front and apparatus therefor Direction of travel from a wave front in a pipeline is determined with two pressure sensors spaced relatively near to each other so that the site from which the wave front emanated is not located therebetween. For each sensor, a determination is made as t... | 03/21/1995 |
